purchase of spare of 415 v acb , l and t make various ratings of installed at power house , dg room and dam control room for teesta low dam-iv power station , kalijhora , moving arcing contact ( each set contains 9 numbers ) , fixed arcing contact ( each set contains 12 numbers ) , fixed arcing contact ( each set contains 3 numbers ) , fixed arcing contact ( each set contains 3 numbers ) , shunt release/tripping coil a 220vdc , shunt release/tripping coil a 24vdc , closing coil 220vdc/240ac , 6 no , 6 nc auxillary contacts blocks , 6 no , 6 nc auxillary contacts blocks , 2 no , 2nc auxillary contacts blocks , motor limit switch , spring charging motor 240v ac , lockable trip push button , type aa , closing coil adaption kit , 220vdc , push button , push button , sr 18 g ( solid state release type )